178 citations · 1.2k across the 45 of their papers we have counts for
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Tunable multi-electron Pancharatnam phase in intensity interferometry
Disha Wadhawan, Krishanu Roychowdhury, Poonam Mehta +1
Pancharatnam phase was discovered in the context of polarization optics in nineteen fifties. However, its full realization in quantum many-body systems still eludes us. This is pri…
Quantum Hall realization of polarized intensity interferometry
Krishanu Roychowdhury, Disha Wadhawan, Poonam Mehta +2
We combine the ideas of intensity interferometry, polarization optics and Bell's measurement into an experimental proposal which is hosted in a = quantum Hall (QH) edge s…
Topological p-n junctions in helical edge states
Disha Wadhawan, Poonam Mehta, Sourin Das
Quantum spin Hall effect is endowed with topologically protected edge modes with gapless Dirac spectrum. Applying a magnetic field locally along the edge leads to a gapped edge spe…